12907757 has 4 divisors (see below), whose sum is σ = 12943296. Its totient is φ = 12872220.

The previous prime is 12907753. The next prime is 12907771. The reversal of 12907757 is 75770921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75770921 = 17 ⋅4457113.

It is a cyclic number.

It is not a de Polignac number, because 12907757 - 2² = 12907753 is a prime.

It is a super-2 number, since 2×12907757² = 333220381542098, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12907757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12907753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17219 + ... + 17952.

It is an arithmetic number, because the mean of its divisors is an integer number (3235824).

Almost surely, 2^12907757 is an apocalyptic number.

It is an amenable number.

12907757 is a deficient number, since it is larger than the sum of its proper divisors (35539).

12907757 is an equidigital number, since it uses as much as digits as its factorization.

12907757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35538.

The product of its (nonzero) digits is 30870, while the sum is 38.

The square root of 12907757 is about 3592.7367006225. The cubic root of 12907757 is about 234.5760092935.

The spelling of 12907757 in words is "twelve million, nine hundred seven thousand, seven hundred fifty-seven".